Methods

As we discussed earlier, methods are the functions associated with a class or struct. Normal methods can only be called through a class instance. However, static methods can be called without an instance as well.

Defining methods #

A class method has to be declared inside the class, but can be defined outside using the scope resolution operator, ::.

struct Account{
  double getBalance() const;
  void withdraw(double amt);
  void deposit(double amt) { balance += amt; }
private:
  double balance;
};

double Account::getBalance() const { return balance; }
inline void Account::withdraw(double amt){ balance -= amt; }

If it is defined inside the class, the compiler automatically considers it an inline function.

this pointer

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